Yep, and the modern phones that people use to take of species with low-quality, but recognisable details are AI upscaled, which can remove those distinctive features. So even people attempting legitimate citizen science can be throwing off the data pool
(Think of using your phone's camera zoom to photograph a bug on a leaf, or a tiny orchid, and it's slightly blurry because of the zoom or movement, then your phone says oh, we've seen that before we'll fill in the gaps, smoothing over what could have otherwise been distinguishing features)
Guard your pre-2020 datasets I guess.